Before pretending to display economic realism, especially in the context of the recent economic crisis, left-wing politics should, first of all, understand the fundamental problem of the state, that is “to see” its natural, inherent limits. Because, as Ludwig Erhard, an artisan of Western Germany’s post-war revival, said, “the government is not a cow that is fed in Heaven and can be milked on Earth”. This is why it is regrettable that, in the absence of a more profound re-evaluation, left-wing politics and contemporary Keynesian economics are trying to solve “the problem of the crisis” exactly with the same means that encouraged the recent recessionary dynamic.